141 lines
3.6 KiB
C
141 lines
3.6 KiB
C
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#ifndef __al_included_allegro5_gl_ext_h
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#define __al_included_allegro5_gl_ext_h
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/*
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* MSVC declares the following extensions and MinGW doesn't. In order to
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* export the same symbols on both platforms we removed the extensions from
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* MSVC.
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*/
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#ifdef ALLEGRO_MSVC
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#undef GL_EXT_vertex_array
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#undef GL_EXT_paletted_texture
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#undef GL_WIN_swap_hint
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#undef GL_WIN_draw_range_elements
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#endif
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/* GL extension definitions. */
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/* For example:
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*
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* #define GL_BGRA 0x80E1
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*
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*/
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#if !defined(ALLEGRO_GP2XWIZ) && !defined(ALLEGRO_IPHONE)
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#include "allegro5/opengl/GLext/gl_ext_defs.h"
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#endif
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#if defined ALLEGRO_WINDOWS && !defined ALLEGRO_EXCLUDE_WGL
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#include "allegro5/opengl/GLext/wgl_ext_defs.h"
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#elif defined ALLEGRO_UNIX && !defined ALLEGRO_EXCLUDE_GLX
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#include "allegro5/opengl/GLext/glx_ext_defs.h"
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#endif
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/* GL extension types */
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/* For example:
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*
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* typedef void (APIENTRY * _ALLEGRO_glBlendEquation_t (GLenum);
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*
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*/
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#ifndef APIENTRY
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#define APIENTRY
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#define APIENTRY_defined
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#endif
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#define AGL_API(type, name, args) typedef type (APIENTRY * _ALLEGRO_gl##name##_t) args;
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# include "allegro5/opengl/GLext/gl_ext_api.h"
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#undef AGL_API
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#ifdef ALLEGRO_WINDOWS
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#define AGL_API(type, name, args) typedef type (APIENTRY * _ALLEGRO_wgl##name##_t) args;
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# include "allegro5/opengl/GLext/wgl_ext_api.h"
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#undef AGL_API
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#elif defined ALLEGRO_UNIX
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#define AGL_API(type, name, args) typedef type (APIENTRY * _ALLEGRO_glX##name##_t) args;
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# include "allegro5/opengl/GLext/glx_ext_api.h"
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#undef AGL_API
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#endif
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#ifdef APIENTRY_defined
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#undef APIENTRY
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#undef APIENTRY_defined
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#endif
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/* GL extension declarations */
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/* For example:
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*
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* #define glBlendEquation _al_glBlendEquation
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* extern _ALLEGRO_glBlendEquation_t _al_glBlendEquation;
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*
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*/
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#define AGL_API(type, name, args) AL_VAR(_ALLEGRO_gl##name##_t, _al_gl##name);
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# include "allegro5/opengl/GLext/gl_ext_alias.h"
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# include "allegro5/opengl/GLext/gl_ext_api.h"
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#undef AGL_API
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#ifdef ALLEGRO_WINDOWS
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#define AGL_API(type, name, args) AL_VAR(_ALLEGRO_wgl##name##_t, _al_wgl##name);
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# include "allegro5/opengl/GLext/wgl_ext_alias.h"
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# include "allegro5/opengl/GLext/wgl_ext_api.h"
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#undef AGL_API
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#elif defined ALLEGRO_UNIX
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#define AGL_API(type, name, args) extern _ALLEGRO_glX##name##_t _al_glX##name;
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# include "allegro5/opengl/GLext/glx_ext_alias.h"
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# include "allegro5/opengl/GLext/glx_ext_api.h"
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#undef AGL_API
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#endif
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/* A list of all supported extensions.
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*
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* For example:
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* int ALLEGRO_GL_ARB_imaging;
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*
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*/
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typedef struct ALLEGRO_OGL_EXT_LIST {
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# define AGL_EXT(name, ver) int ALLEGRO_GL_##name;
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# include "allegro5/opengl/GLext/gl_ext_list.h"
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# undef AGL_EXT
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#ifdef ALLEGRO_UNIX
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# define AGL_EXT(name, ver) int ALLEGRO_GLX_##name;
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# include "allegro5/opengl/GLext/glx_ext_list.h"
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# undef AGL_EXT
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#elif defined ALLEGRO_WINDOWS
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# define AGL_EXT(name, ver) int ALLEGRO_WGL_##name;
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# include "allegro5/opengl/GLext/wgl_ext_list.h"
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# undef AGL_EXT
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#endif
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} ALLEGRO_OGL_EXT_LIST;
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/* GL extension Structure. Holds the pointers to all the functions
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* of all extensions, for a single context.
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*
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* Example:
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* ALLEGRO_BlendEquation_t BlendEquation;
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*/
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typedef struct ALLEGRO_OGL_EXT_API {
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#define AGL_API(type, name, args) _ALLEGRO_gl##name##_t name;
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# include "allegro5/opengl/GLext/gl_ext_api.h"
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#undef AGL_API
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#ifdef ALLEGRO_WINDOWS
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#define AGL_API(type, name, args) _ALLEGRO_wgl##name##_t name;
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# include "allegro5/opengl/GLext/wgl_ext_api.h"
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#undef AGL_API
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#elif defined ALLEGRO_UNIX
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#define AGL_API(type, name, args) _ALLEGRO_glX##name##_t name;
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# include "allegro5/opengl/GLext/glx_ext_api.h"
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#undef AGL_API
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#endif
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} ALLEGRO_OGL_EXT_API;
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#endif
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